import math







def      _a					(   lowercase__	:      float  ,	lowercase__	:      float			):







     '''simple docstring'''


     if initial_intensity < 0:
          raise ValueError('The value of intensity cannot be negative'			)
          # handling of negative values of initial intensity
     if angle < 0 or angle > 3_60:
          raise ValueError('In Malus Law, the angle is in the range 0-360 degrees'			)
          # handling of values out of allowed range
     return initial_intensity * (math.cos(math.radians(lowercase__			)			) ** 2)


if __name__ == "__main__":
      import doctest

      doctest.testmod(name="malus_law")








'''simple docstring'''






import os

try:
     from .build_directory_md import good_file_paths
except ImportError:
     from build_directory_md import good_file_paths  # type: ignore

lowerCAmelCase:   Optional[int]					=		list(good_file_paths())
assert filepaths, "good_file_paths() failed!"

lowerCAmelCase:   Optional[Any]					=		[file for file in filepaths if file != file.lower()]
if upper_files:
     print(F"{len(upper_files)} files contain uppercase characters:")
     print('\n'.join(upper_files) + '\n')

lowerCAmelCase:   int					=		[file for file in filepaths if ' ' in file]
if space_files:
     print(F"{len(space_files)} files contain space characters:")
     print('\n'.join(space_files) + '\n')

lowerCAmelCase:   Union[str, Any]					=		[file for file in filepaths if '-' in file]
if hyphen_files:
     print(F"{len(hyphen_files)} files contain hyphen characters:")
     print('\n'.join(hyphen_files) + '\n')

lowerCAmelCase:   Union[str, Any]					=		[file for file in filepaths if os.sep not in file]
if nodir_files:
     print(F"{len(nodir_files)} files are not in a directory:")
     print('\n'.join(nodir_files) + '\n')

lowerCAmelCase:   int					=		len(upper_files + space_files + hyphen_files + nodir_files)
if bad_files:
     import sys

     sys.exit(bad_files)